I can think of a couple of things made that way.
The first is (was, you don;t see them anymore) darkroom sinks. They were
normally made of cypress.
The second is wooden boats.
As long as the sinks were used frequently and the wood stayed wet, the water
stayed where it was supposed to be. Ditto boats; but if the boat was taken
out of the water for any period of time it would leak like a sieve. Same
thing if you were on one tack for a while and then changed tacks so the boat
laid on the other side.
Both worked well *because* of wood movement...swelling when damp.
So go ahead and make your counter top, just wet it down 4-6 times a day.
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